import time
from datetime import datetime, timedelta

from info import constants, db
from info.models import User, News, Category
from info.modules.admin import admin_blu
from flask import render_template, request, jsonify, current_app, session, redirect, url_for, g,abort

from info.utils.common import user_login_data
from info.utils.image_storage import storage
from info.utils.response_code import RET


@admin_blu.route('/news_type',methods = ["GET","POST"])
def news_type():

    if request.method == "GET":
        # 查询分类
        try:
            categories = Category.query.all()
        except Exception as e:
            current_app.logger.error(e)
            return render_template("admin/news_type.html",errmsg = "查询错误")

        categories_list= []

        for category in categories:
            # 取到分类id
            cate_dict = category.to_dict()

            categories_list.append(cate_dict)

        #     移除第一个最新分类
        categories_list.pop(0)

        data = {
            "categories":categories_list
        }

        return render_template("admin/news_type.html",data=data)

    #新增或添加分类
    #1.取参数
    cname = request.json.get("name")
    #2.分类id
    cid = request.json.get("id")

    if not cname:
        return jsonify(errno = RET.PARAMERR , errmsg = "参数错误")

    if cid:
        try:
            cid = int(cid)
            category = Category.query.get(cid)
        except Exception as e:
            current_app.logger.error(e)
            return jsonify(errno=RET.PARAMERR, errmsg="参数错误")

        if not category:
            return jsonify(errno=RET.NODATA, errmsg="未查询到分类数据")
        category.name = cname
    else:
        category = Category()
        category.name = cname
        db.session.add(category)

    return jsonify(errno = RET.OK , errmsg = "OK")




@admin_blu.route('/news_edit_detail',methods= ["GET","POST"])
def news_edit_detail():

    if request.method =="GET":
        # 查询点击的新闻并传送数据到模板中
        news_id = request.args.get("news_id")

        if not news_id:
            abort(404)

        try:
            news_id = int(news_id)
        except Exception as e:
            current_app.logger.error(e)
            return render_template('admin/news_edit_detail.html',errmsg = "参数错误")

        try:
            news = News.query.get(news_id)
        except Exception as e:
            current_app.logger.error(e)
            return render_template('admin/news_edit_detail.html',errmsg = "查询数据错误")

        if not news:
            return render_template('admin/news_edit_detail.html',errmsg = "未查询到数据")

        # 查询分类
        categories = []
        try:
            categories = Category.query.all()
        except Exception as e:
            current_app.logger.error(e)
            return render_template('admin/news_edit_detail.html',errmsg = "查询数据错误")

        categories_list = []
        for category in categories:
            # 取出分类id
            cate_dict = category.to_dict()
            # 循环遍历分类是否与当前新闻分类相等,如果等于  则添加is_selected = True
            if category.id == news.category_id:
                cate_dict['is_selected'] = True
            categories_list.append(cate_dict)


        categories_list.pop(0)


        data = {
            "news":news.to_dict(),
            "categories":categories_list
        }

        return render_template('admin/news_edit_detail.html',data = data)

    #取到post 进来的数据
    news_id = request.form.get("news_id")
    title = request.form.get("title")
    # 摘要
    digest = request.form.get("digest")
    # 内容
    content = request.form.get("content")
    index_image = request.files.get("index_image")
    # 分类
    category_id = request.form.get("category_id")

    if not all([title,digest,content,category_id]):
        return jsonify(errno = RET.PARAMERR , errmsg = "参数错误")

    #查询指定id
    try:
        news = News.query.get(news_id)
    except Exception as e:
        current_app.logger.error(e)
        return jsonify(errno = RET.DBERR , errmsg = "数据查询失败")

    if not news:
        return jsonify(errno = RET.DBERR , errmsg = "未查到新闻数据")

    #1.2尝试读取图片
    if index_image:
        try:
            index_image = index_image.read()
        except Exception as e:
            current_app.logger.error(e)
            return jsonify(errno=RET.PARAMERR, errmsg="参数错误")

        #将标题图片上传到七牛
        try:
            key = storage(index_image)
        except Exception as e:
            current_app.logger.error(e)
            return jsonify(errno=RET.THIRDERR, errmsg="图片上传错误")
        news.index_image_url = constants.QINIU_DOMIN_PREFIX+key

    news.title = title
    news.digest =digest
    news.content =content
    news.category_id = category_id

    return jsonify(errno = RET.OK , errmsg = "编辑成功")



@admin_blu.route('/news_edit')
def news_edit():
    page = request.args.get("p", 1)
    keywords = request.args.get("keywords", None)
    try:
        page = int(page)

    except Exception as e:
        current_app.logger.error(e)

    news_list = []
    current_page = 1
    total_page = 1

    filters = [News.status == 0]
    if keywords:
        filters.append(News.title.contains(keywords))

    try:
        paginate = News.query.filter(*filters). \
            order_by(News.create_time.desc()).paginate(page, constants.ADMIN_NEWS_PAGE_MAX_COUNT, False)
        news_list = paginate.items
        current_page = paginate.page
        total_page = paginate.pages

    except Exception as e:
        current_app.logger.error(e)

    news_dict_li = []
    for news in news_list:
        news_dict_li.append(news.to_basic_dict())

    context = {
        "news_list": news_dict_li,
        "current_page": current_page,
        "total_page": total_page
    }

    return render_template('admin/news_edit.html', data=context)


# 新闻审核通过
@admin_blu.route('/news_review_action',methods=["POST"])
def news_review_action():

    # 1 接收参数
    news_id = request.json.get("news_id")
    action = request.json.get("action")
    # 检验参数
    if not all([news_id,action]):
        return jsonify(errno = RET.PARAMERR , errmsg = "参数错误")

    if action not in ("accept","reject"):
        return jsonify(errno = RET.PARAMERR , errmsg = "参数错误")


    try:
        # 查询指定的新闻数据
        news = News.query.get(news_id)
    except Exception as e:
        current_app.logger.error(e)
        return jsonify(errno = RET.DBERR , errmsg = "数据查询失败")

    #如果没有新闻显示没有数据
    if not news:
        return jsonify(errno = RET.NODATA , errmsg = "未查询到数据")

    if action == 'accept':
        #审核通过
        news.status = 0

    else:
        #代表拒绝
        reason = request.json.get("reason")
        if not reason:
            return jsonify(errno = RET.PARAMERR , errmsg = "请输入拒绝信息")

        news.status = -1
        news.reason = reason

    return jsonify(errno = RET.OK , errmsg = "OK")


# 新闻审核列表
@admin_blu.route('/news_review_detail/<int:news_id>')
def news_review_detail(news_id):

    news = None
    # 查询新闻
    try:
        news = News.query.get(news_id)
    except Exception as e:
        current_app.logger.error(e)

    if not news:
        return render_template("admin/news_review_detail.html",errmsg = "未查询到新闻")

    # 返回数据
    data = {"news":news.to_dict()}

    return render_template('admin/news_review_detail.html',data = data)


@admin_blu.route('/news_review')
def news_review():

    page = request.args.get("p",1)
    keywords = request.args.get("keywords",None)
    try:
        page = int(page)

    except Exception as e:
        current_app.logger.error(e)

    news_list = []
    current_page = 1
    total_page = 1

    filters = [News.status != 0]
    if keywords:
        filters.append(News.title.contains(keywords))

    try:
        paginate = News.query.filter(*filters).\
            order_by(News.create_time.desc()).paginate(page,constants.ADMIN_NEWS_PAGE_MAX_COUNT,False)
        news_list = paginate.items
        current_page = paginate.page
        total_page = paginate.pages

    except Exception as e:
        current_app.logger.error(e)

    news_dict_li = []
    for news in news_list:
        news_dict_li.append(news.to_review_dict())

    context = {
        "news_list":news_dict_li,
        "current_page":current_page,
        "total_page":total_page
    }

    return render_template('admin/news_review.html',data = context)

@admin_blu.route('/user_list')
def user_list():

    page = request.args.get("p",1)

    try:
        page = int(page)
    except Exception as e:
        current_app.logger.error(e)
        page = 1

    users = []
    current_page = []
    total_page = []

    try:
        paginate = User.query.filter(User.is_admin == False).paginate(page,constants.ADMIN_NEWS_PAGE_MAX_COUNT,False)
        users = paginate.items
        current_page = paginate.page
        total_page =paginate.pages
    except Exception as e:
        current_app.logger.error(e)

    # 运行模板转换为字典
    user_dict_li = []
    for user in users:
        user_dict_li.append(user.to_admin_dict())

    data  = {
        "users":user_dict_li,
        "current_page":current_page,
        "total_page":total_page
    }


    return render_template('admin/user_list.html',data=data)

@admin_blu.route('/user_count')
def user_count():
    # 总人数
    total_count = 0
    try:
        total_count = User.query.filter(User.is_admin == False).count()
    except Exception as e:
        current_app.logger.error(e)

    # 本月新增
    mon_count = 0
    #当前时间
    t = time.localtime()
    #当前年份 ,当前月份
    begin_mon_data_str = "%d-%02d-01" % (t.tm_year,t.tm_mon)
    # 将字符串转成datatime
    begin_mon_data = datetime.strptime(begin_mon_data_str,"%Y-%m-%d")
    try:
        mon_count = User.query.filter(User.is_admin==False,User.create_time>begin_mon_data).count()
    except Exception as e:
        current_app.logger.error(e)

    # 日新增
    day_count = 0
    begin_day_data = datetime.strptime(('%d-%02d-%02d' % (t.tm_year,t.tm_mon,t.tm_mday)) , "%Y-%m-%d")
    try:
        day_count = User.query.filter(User.is_admin==False,User.create_time>begin_day_data).count()
    except Exception as e:
        current_app.logger.error(e)

    # 折线图
    active_time = []
    active_count = []

    begin_today_date= datetime.strptime(("%d-%02d-%02d" % (t.tm_year,t.tm_mon,t.tm_mday)),"%Y-%m-%d")

    for i in range(0,31):
        begin_date = begin_today_date - timedelta(days=i)
        end_date = begin_today_date - timedelta(days=(i-1))
        count = User.query.filter(User.is_admin == False, User.last_login >= begin_date,
                                  User.last_login < end_date).count()
        active_count.append(count)
        active_time.append(begin_date.strftime('%Y-%m-%d'))
        # print(begin_data)
        # print(end_data)

    active_time.reverse()
    active_count.reverse()

    data = {
        "total_count":total_count,
        "mon_count":mon_count,
        "day_count":day_count,
        "active_time":active_time,
        "active_count":active_count
    }

    return render_template('admin/user_count.html',data=data)




@admin_blu.route('/index')
@user_login_data
def index():
    user = g.user
    return render_template('admin/index.html',user = user.to_dict())


@admin_blu.route("/login",methods = ["GET","POST"])
def login():

    if request.method == "GET":
        user_id = session.get("user_id",None)
        is_admin = session.get("is_admin",False)
        if user_id and is_admin:
            return redirect(url_for("admin.index"))
        return render_template("admin/login.html")

#     取到登录参数
    username = request.form.get("username")
    password = request.form.get("password")

    if not all([username,password]):
        return render_template("admin/login.html",errmsg="参数错误")

    #查询当前用户
    try:
        user = User.query.filter(User.mobile == username,User.is_admin == True).first()
    except Exception as e:
        current_app.logger.error(e)
        return render_template("admin/login.html",errmsg="用户信息查询失败")

    if not user:
        return render_template("admin/login.html" , errmsg = "未查询到用户信息")

    if not user.check_passowrd(password):
        return render_template("admin/login.html" , errmsg = "用户名或密码错误")

    session["user_id"] = user.id
    session["mobile"] = user.mobile
    session["nick_name"] = user.nick_name
    session["is_admin"] = user.is_admin

    # 跳转后台首页
    return redirect(url_for('admin.index'))